Improvement in devices for exhibiting photographic pictures



"j/Ww@ .PETERS. PHOTO-LITHOGRAPHER, WASHINGTON. D C.

l ALBERT c, WALToN, or SAN rnANcIsoov CALIFORNIA.

Lettere Patent Ne.1o9,472,de.teaNeyember 22,18%.

vuupuovlaluENT IN DkEvlcEs FOR EXHiBtTlNG yPi|o1cefnaPnic plcruuias.v

The Schedule-referred to in these Letters 4Patent: and marking part ofthe same.

To all whom -ib ymay concern .-v

city and county of Sau Francisco, State ot' California,

have invented a-n Improved Device for Ilxhibiting l ho tographic Cards and Stereoscopes; and I do hereby declaret-he following description and accompanyingdrawing are sullieientto enable any person skilled in the art or science'to which it most nearly appertains to make 1 and use 'my said invention or improvement without further invent-ion or experiment.

M v invention relates to an improved device for ex pins, which, as the wheels revolve, take the cards orframes in succession ii'om the bottom ot' the pile, and carry them up to thc glass window through which the pictures'are viewed, and, aller carrying them past this point, they drop, with their opposite faces downward, upon the top ot'lihe pile in the middle or' the box.

After the whole number oiA cards or ii'ames'has been passed around and one side inspected, a continuation of the same motion .will cause them to be carried around in the same manner with the opposite sides to the front, thus giving two views l'or each i'rame or card .in the box.

,In order to more fully-explain the construction and operation ot' my invention, reference is had, inthefollowing description, to theaccompanying drawing form# ing a part of this specification, iu'wliieh- A represents a box ol' any desired shape or size. The shape which I prefer is thc one here shown, being an ordinary square box wit-h one corner cut away to the desired angle, so as io forma face, into which a pane ot' glass, (i, is set. lhis `elass should be nearly Y equal ,in size to that ci' theeii'ames Vor pictures which are to he viewed through il.

Inside of this' box, and lyingclosely against each side, is a toot-hed wheel, b, and inside this wlieel is a circular metallic disk, c, between which and the side` of the box the wheels l) revolve, heilig driven by pinions 'i i upon the shatt 7.', which is turned byl a crank, i At statedintervals, equal to `the'width o t the pictures or frames containing them, are pins d, which proiect over the disk U toward the inside ot' the box.

In the i-ontpart ot' the box, and just ii-rsidethe window a, is a Deshapedy block, c, which is secured with its curved side toward the window :rnditis vcrti cal side toward the middle ot'etlic box-r.

lhc curved side of this block is set in suicicntly to permit the cards or frames to be carried around by the pins Z between its convex side and the inner con- I cave ofthe front of the box, until it reaches ,the top of 'the D-shafpcd block, from which Iit will drop into the well or space in which the pile of cards lie, with The cards or pictures are ltaken up by the pins on r thc wheels, one'at'ter another, until the whole. number f has been passed around and scrutinized, when, without discontinuing the turning of the crank j, the operation will be repeated wit-h the opposite side toward the front, and exposing a new set of pictures.

'In order to prevent the pins from carrying along more than one card ata time, conical orwedge-shaped n1ide-blocks lare secured at the lower edge of the disks c, opposite toeach other, at ahcight just sulicient to permit one eardor iiame to be drawn from below it al; a tznel ',lhe frames or cards are provided with'a recess,'m,

at each end, as' shownat lfigure 4, which, as the cards Vol.ii':nn'es settle toward the bottom, allow them to slide down past the projection, while the shoulder of thc recess, bearing against the projection, prevents them from bc'in'g moved untilv they pass below it in a position to be caught by the pins. l

' 'The wedge shape of the projection serve's'to allow the cards iobe tilted to one side by the rising of one -v corner as the lowcrcard or traineis passing out.

The box is provided with a sliding cover, I), and a lock is used lo secure. it in place, so that the pictures p cannot beI handled or removed, while perfect liberty to examine them is allowed.

'lwo D-shaped'blocks can he usedin place ofthe single blockqoue being'plaeed at each end oi' the box.

For examining stereoscopes a rest, E, can be ,einployed, with a partition, n. l .Lhc eye-glasses or lenses for this purpose are fixed in two suitable blocks, 1",`whieh are hinged together, and which, when openedout, can be attached to the front-ot' the vrest by anysiiit-able means.

lhe blocks F, \'l1en `ibhled together 'so that the lcnsesshnll approach each other,`f1nnish a magnify-v ing-glass for examining plctdres or other objects.

. Instead oi' the 'pinsl metal or ,other rods of proper sire canbe attached lto thc two wheels, so as to counect them, in which case the driving-shaft, pinions,

andteeth on the wheels can be dispensed with, anda knob substituted i'or the crank.

rIhis device will he an excellent substitute for parlor-albums,` as the pictures will be protected while they can be examined at pleasure.

Advertisiing-eards can also be placed inthe box,`iu.

steadof and together with-pictures, and brought into vicwfin the saure manner as above described. l'

L5' {av-'ing thus described my invention,

'extending entirely'ncrossihe frame, so :is te connect the two opposite wheels, substantially :is undy for thc f which ythe ypictures or frames are taken from the boftom of the pile and carried infsucmz'ssiony infront of f rWhat; 1- clninnn'ml desire to secure by Leiters "1. The wheels b, either provided with pins Loi-slats purpose above described.

y2. '.lhcy D-shaped block c, oriis cquivaieni, substan- Jriaiiy :1s and for the purpose lbove described.' f f f 3. .The combination of paris above '(Icscl'ibed, by

the window, and deposited with their .opposite sides down in the weil, in the manner :md for the purpose above described.

4. The conica] or wedge-shaped projections, in combinntion wit-h the recessed picture or ezird-frzune, sidif stnntinilyfas and for the purpose above described.

lhe box A, provided with u window, in conibi-y nation with the devices above claimed for bringing the cnrillsfor pictures in succession, So :is to he viewed' through it, substantially ns described. f

6. The eye-glass blocks, hinged together as dcffscribed, so.' asfto beconvc'liible 'mton. magnifyingglnss, :is above set forth.

`\\itncss myy hund and seni. f f f ALBERT G. WALTON. [rhs] -fit-nessus:

GEO. H. STRONG., (if. FITZGERALT. 

